Frog, You really think a significant percentage of that money actually pays for infrastructure? Mostly it goes to pay government drones/parasites to do nothing. Income taxes are primarily an income redistribution scheme. It's not about actually fixing problems and paying for things we need, it's about social engineering.
I have previously expressed my thoughts on military spending in another of my pompous posts on this board. To summarize: I think our military should be downsized to the minimum size required to defend the 50 states. Let the oil prices fall where they may.